Update gp-email-student.html

Author: david-evans84-NHSD

app/views/emails/gp-email-student.html

@@ -273,7 +273,7 @@ <h3 class="nhsuk-heading-m nhsuk-u-padding-top-4">Student details</h3>
 
     <div class="nhsuk-summary-list__row">
       <dt class="nhsuk-summary-list__key">
-        What is your student ID number?
+        Student ID number
       </dt>
       <dd class="nhsuk-summary-list__value">
         IB 1123690464